kc3-lang/harfbuzz

2022-05-17T14:57:08

[ot-tags] Optimize lang_matches() Part of https://github.com/harfbuzz/harfbuzz/issues/3591 Before: ------------------------------------------------------------------------------------------------ Benchmark Time CPU Iterations ------------------------------------------------------------------------------------------------ BM_hb_ot_tags_from_script_and_language/COMMON abcd_XY 8.67 ns 8.64 ns 80324382 BM_hb_ot_tags_from_script_and_language/COMMON zh_CN 91.2 ns 90.9 ns 7674131 BM_hb_ot_tags_from_script_and_language/COMMON en_US 41.1 ns 41.0 ns 17174093 BM_hb_ot_tags_from_script_and_language/LATIN en_US 41.3 ns 41.2 ns 17000876 BM_hb_ot_tags_from_script_and_language/COMMON none 4.56 ns 4.55 ns 153914130 BM_hb_ot_tags_from_script_and_language/LATIN none 4.53 ns 4.52 ns 153830303 After: ------------------------------------------------------------------------------------------------ Benchmark Time CPU Iterations ------------------------------------------------------------------------------------------------ BM_hb_ot_tags_from_script_and_language/COMMON abcd_XY 8.24 ns 8.21 ns 84078465 BM_hb_ot_tags_from_script_and_language/COMMON zh_CN 77.5 ns 77.2 ns 9059230 BM_hb_ot_tags_from_script_and_language/COMMON en_US 38.8 ns 38.7 ns 17790692 BM_hb_ot_tags_from_script_and_language/LATIN en_US 37.6 ns 37.5 ns 18648293 BM_hb_ot_tags_from_script_and_language/COMMON none 4.50 ns 4.49 ns 155573267 BM_hb_ot_tags_from_script_and_language/LATIN none 4.49 ns 4.47 ns 156456653